Planoqraph co



Patented July 1, 1919.

2 SHEETS-SHEET 1.

M. F. WILLIAMS. 1

CAGE FOR REDUCING MACHINES.

I APPLICATION FILED IAN- 22| I918. 1,308,384:-

1 M/ o m 2 w W 0 Z WU I M W WM WM 3 F 6 W Jam/N /@.U M v U 4 NJ 1 M. F WILLIAMS.

CAGE FOR REDUCING MACHINES.

APPLICATION FILED JAN.22. I918.

'1 08,384. Patented July 1, 1919.

2 3HEETS-SHEET 2.

zz 2x zz i w 1mm OFFICE Parents QRUSHER AND BULYEnrzEaoo vr Amp rintiretlirrssopnr e COIWORATIONY QEMISSQTIRL To all whontit mayconccmr p Be it known that I, MILTON F.=WILLrAMs, a citizenof the United States, residing at St. Louis, Missouri, have invented a certain The princi 'to provide a cage or screen Whichis co1nparatively strong, rigid and durable and the parts of saidlcageor screen lncluding the framework being made upof ordinaryand readily obtainable structural shapes which can be easily yvorked and assembledto, produce the finishech cage; hereby minimizing the cost of manufacture.

It Will be understood that cages or screens utilized in connection with reducing n1achines employing pivoted hammersor beaters are curved lengthrviseorformed'on the arc of a circle Whichis.concentric viththe shaft carrying the hammers oribeaters, anjd it is one of thesobjects of ,inventi'onto construet an arcuate cage onscreen sothat it will effectively resist strainsandforces Whichit may be subjected to While in service and which may tend to distort or bend it to such a degree as to render it unfit for service.

. A further object ofumy invention is to arrange suitable paoking strips betv'veen tain of the frame members and the side edges of the reticulated body of the cage, thereby eliminating the possibility of loss of pulverized or reduced material between the sides of the cage or screen and the body of the machine in which said cage is positioned.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of pal object of my inventionis -SerialKol2 13i202J* 1 parts, hereinafter more fully described and claimed, and illustrated in ing drawinggein which 1 W i M Figure l is side l evational view of a cage or screen of my improved construction. Fig. 2 isa plan view of thecage, a portion of v the reticulatedlxbody thereof being broken away 1 Fig. 3 is an enlarged detail section taken approximately on the line ii- 310f Fig. 2. Figwc is an enlarged detail section taken approximately on thelinee a ofFig. 2.

the accompany.-

w Figl5 is an enlarged detailsection taken.

approximatelybn the 5-6 of Fig.2. Fig. 6 is an enlarged detail section taken approximately onthe line 6-6 of Fig. 2.

1. Fig; 7 is an enlarged detail section taken -proximately on the line 7%? of Fig. 2;

. =ig.-8=is aside elevational view of amodi- *fiedfornrofmy improved cage.

Fig. 9 is apla n view of the modified form of thecagefl e Y W Fig. 10 is a cross sectional proximately on the Knew--10 of Fig. 9.

Referring bynumerals to the accompanying dravvings, andparticularly to Figs. l totl'flinclusive, which illustrate a practical embodiment of my i'11vention,1O designates a reticulated member, preferably a metal plate having holes pnnched therein, said plate being 'bent into aircuate form.

Positioned'on the endsof this body are jtransversely disposed angle bars 11, each bar being arranged] with one 1 leg or flange overlying the end of the innerface of plate 10 'anclthe other le or flange projecting outwardly from sai end. Positioned immediately against the outer face ofeach end bf the reticulated plate 10 and against the projecting leg or flange of the *erably of metal and substantially square in cross section.

Located on the inner face of the reticulated plate and along the edges thereof are curved metal strips 13, the ends of Which overlie the end portions of the inner legs or flanges of the angle bars 11. These strips or bars 13 perform the functions of frame members which combine with the rails 11 and bars 12 to form a marginal frame for respon ing angle bar llis abar 12, pref the reticulated platev 10 and in addition, said strips serve as reinforcing means, for the sides of the cage.

Rivets 14 or like fastening devices serve to secure the ends of the strips '13 to the endsof the angle bars 11 and rails 12 and likewiseto secure these parts to the corners of. the,

reticulated plate 10. In order to form tight joints between the side strips or rails 13 and the side edges of the plate 10, strips 15 of suitable packing material such as: fabric, leather, rubber or the like, are interposed beinforced and strengthened'by means of. a

transversely disposed rail or bar, 16, preferablyof metal and square in cross section, the same being applied to the outer face of plate 10 and its ends being. secured to said plate and to'the central portions of side'rails or strips 13' by means of rivets 17 Formed in the inner face of this rail orbar 16 isa notch or recess' 18 which is occupied by the central portion of a longitudinally disposed reinforcing bar or strip l9, the latter being applied to the outer face of plate-10 at a point preferably midway between the side strips or rails 13. The ends of this longitudinally disposed reinforcing strip 19 are secured to the central portions of the angle bars 11, rails 12 and the corresponding portions of the plate 10 by rivets 20.,

In the modified construction illustrated in Figs. 8 to 10 inclusive, a reticulated plate 21 bent toarcuate form constitutes the body of the cage, and positioned on the ends thereof and against the outer face are transversely disposed metal rails 22. Positioned against the inner face of this plate 21 and immediately adjacent to the side edges thereof are side rails or bars 23, the ends thereof being secured to the endsfof transverse bars22 and to the interposed portions of the plate 21 by means of rivets 24:, or like fastening devices.

Arranged on the outer face of the reticulated plate 22 and preferably spaced: at equal Copies of this patent may' be obtained for distances apart, are transversely. disposed rails 25, the ends of which are connected to the bodies of the side bars 23 and to the interposed portions of plate 21 by means of rivets 26- or' like fastening devices.

The type of cage just described and illustrated in Figs. 8 to 10 inclusive, is particul'arly designed for comparatively heavy service or for reducing machines in which compar'atively hard material such as coal, limestone, and. the like is reduced, and consequently, the parts are formed of relatively heavy material well adapted to withstand heavy service shocks and strains.

Cagesof my improved construction are comparatively simple, can be easily and cheaply manufactured, can be made in varioussizes and shapes to suit different conditions and. are particularly designed to resist wear and likewise service shocks and strains.

- It will be readily understood that minor changes the size, form and construction of the various parts of my improved cage can be made and substituted for those herein shown and described, without departing from the spirit of my invention, the scope of which is set. forth in the appended claim.

I. claim The hereindescribed reducing machine cage comprising a reticulated plate curved lengthwise, transversely disposed reinforcing bars applied to the underside of said plate atboth endsand near the center thereof, the inner faces of said reinforcing bars being notched at points adjacent to their centers, a longitudinally disposed reinforcing bar applied to the underface of the reticu'lated plate and occupying the notches in said transversely disposed reinforcing bars,

' strips applied to the inner face of the curved plate adjacent to the side edges thereof, packing strips interposedbetwee-n said strips and the reticulated plate, and fastening devices seated in the curved plate, the transversely disposed reinforcing bars, the longitudinally disposed reinforcing member, the strips, and. the packing strips.

Intestimony whereof I hereunto aiiix my signature, this 16 day of January 1918.

MILTON F. WILLIIAMS.

five cents each, by addressing the Commissionerof Patents. Washington, D. 0'. 

